Grip-Rite Fine Thread Self-Drilling Drywall Screw Bugle head, Phillips recess, drill point drywall screw. Recommended for the application of drywall or gypsum board to 10-12 gauge metal studs. Recommended maximum drive speed of 2500 RPM. This screw is constructed of hardened steel which is the result of carbon steel being put through heat treatment, quenching, and further reheating making it extremely durable. Hardened Steel is more resistant to wear, corrosion, and abrasion. Size #6 x 1-1/4 In., Material Hardened Steel, Head Type Bugle, Drive Type Phillips, Thread Diameter #6, Finish Zinc, Length 1-1/4 In., Pkg Qty 8000, Package Type Box Warning Cancer and Reproductive Harm. www.P65warnings.ca.gov